$ git clone -n https://src.fedoraproject.org/rpms/rust-gst-plugin-fallbackswitch.git /var/lib/mock/f42-build-3262676-41241/root/chroot_tmpdir/scmroot/rust-gst-plugin-fallbackswitch
Cloning into '/var/lib/mock/f42-build-3262676-41241/root/chroot_tmpdir/scmroot/rust-gst-plugin-fallbackswitch'...
$ git fetch origin 125f3bea49be669d43f60fd2f7a9ce596f7a2f77:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gst-plugin-fallbackswitch
 * [new ref]         125f3bea49be669d43f60fd2f7a9ce596f7a2f77 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 125f3be Initial import (rhbz#2342460)